Even after losing the duel, Glenn lacks all motivation. Yet through his interactions with Sistine and Rumia, he eventually starts genuinely teaching classes that will help them. Meanwhile, suspicious men show up at the academy…
His explanation was really 
easy to understand.
.لقد كان شرحه سهلاً جدًّا للفهم
Die Erklärungen des Lehrers waren
echt einfach zu verstehen, oder?
Su explicación fue fácil de entender.
Su explicación fue fácil de entender.
Les explications de Glenn
sont vraiment claires.
La sua spiegazione
è stata davvero semplice da capire.
A explicação dele é mesmo
 muito fácil de entender.
Он так понятно всё объяснил.